[Bug 43754] New: In dlls/dbghelp/dwarf.c file, there is a NULL dereference

https://bugs.winehq.org/show_bug.cgi?id=43754

Bug ID: 43754
           Summary: In dlls/dbghelp/dwarf.c file, there is a NULL
                    dereference
           Product: Wine
           Version: 2.0.2
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: dbghelp
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 59249
  --> https://bugs.winehq.org/attachment.cgi?id=59249
In line 447, variable last has a NULL dereference

In the dwarf.c file, the variable last is assigned NULL,there is no other
operation with last, uthil "last->next = new "when the "abbrev_entry->attrs" is
true,
so there is a NULL dereference.

[Bug 43754] In dlls/dbghelp/dwarf.c file, there is a NULL dereference

https://bugs.winehq.org/show_bug.cgi?id=43754

--- Comment #1 from iscas  ---
Created attachment 59250
  --> https://bugs.winehq.org/attachment.cgi?id=59250
a patch for the bug

[Bug 43754] In dlls/dbghelp/dwarf.c file, there is a NULL dereference

https://bugs.winehq.org/show_bug.cgi?id=43754

iscas  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #59249|In line 447, variable last  |In line 447, the variable
        description|has a NULL dereference      |last has a NULL dereference

[Bug 43754] In dlls/dbghelp/dwarf.c file, there is a NULL dereference

https://bugs.winehq.org/show_bug.cgi?id=43754

--- Comment #2 from Alexandre Julliard  ---
abbrev_entry->attrs will be null the first time around. The code looks fine to
me. Did you actually get a crash here?

[Bug 43754] In dlls/dbghelp/dwarf.c file, there is a NULL dereference

https://bugs.winehq.org/show_bug.cgi?id=43754

--- Comment #3 from iscas  ---
(In reply to Alexandre Julliard from comment #2)
> abbrev_entry->attrs will be null the first time around. The code looks fine
> to me. Did you actually get a crash here?

sorry , i,m wrong ,i just thought it was a bug

[Bug 43754] In dlls/dbghelp/dwarf.c file, there is a NULL dereference

https://bugs.winehq.org/show_bug.cgi?id=43754

Alexandre Julliard  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |INVALID

--- Comment #4 from Alexandre Julliard  ---
Invalid then.

[Bug 43754] In dlls/dbghelp/dwarf.c file, there is a NULL dereference

https://bugs.winehq.org/show_bug.cgi?id=43754

Austin English  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

--- Comment #5 from Austin English  ---
Closing.